TOP LEVEL - Medical Grade Isolation Power Transformers (MD Series)

Triad’s MD Series Medical Isolation Power Transformers provide a complete, ready-to-use isolation power solution for medical, laboratory, and other critical applications requiring low leakage current and enhanced operator protection. Available in ratings from 250 VA to 2400 VA the MD Series combines a high-efficiency toroidal isolation transformer, medical-grade power connections, integrated overcurrent protection, and a rugged steel enclosure.

Certified to UL / CSA / IEC 60601-1 medical safety standards, MD Series isolation transformers deliver low leakage current, excellent electrical isolation, reduced stray magnetic fields, and reliable performance in demanding environments.

Key Features & Selection Range:

  • Power Range: 250 VA to 2400 VA
  • Input Options: 120 VAC and 240 VAC models available
  • Output Voltage: 120 VAC isolated output
  • Low Leakage Performance: Less than 50 µA leakage current, typically 10 µA
  • Medical Safety Certified: UL / CSA / IEC 60601-1 compliant
  • High Isolation: 3000 VAC input-to-output dielectric isolation
  • Toroidal Construction: High efficiency, compact size, low noise, and reduced stray magnetic fields
  • Integrated Protection: Fused input and thermal protection for reliable operation
  • Ready to Use: Medical-grade power cord, receptacles, and steel enclosure.
  • Warranty: 5-year warranty

Typical Applications:

  • Medical examination and treatment equipment
  • Diagnostic and laboratory instruments
  • Patient monitoring systems
  • Service and repair benches
  • Clinical and hospital environments
  • Sensitive electronic and audio equipment requiring isolated AC power

MID LEVEL- Medical Grade Isolation Power Transformers (MD Series)

Certified to UL / CSA / IEC 60601-1 medical safety standards, the MD Series provides a complete isolation power solution with low leakage current, 3000 VAC isolation, integrated fusing, and high-efficiency toroidal transformer construction.

Available in 250 VA to 2400 VA ratings with both 120 VAC and 240 VAC input options, the MD Series delivers isolated 120 VAC output power through standard medical-grade power connections in a compact, ready-to-use enclosure.

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Key Features

  • UL / CSA / IEC 60601-1 medical safety certified
  • Low leakage current design: less than 50 µA maximum, typically 10 µA
  • 3000 VAC input-to-output dielectric isolation
  • High-efficiency toroidal transformer construction
  • Reduced stray magnetic fields and low audible noise
  • Integrated fused protection and thermal protection
  • Class F (155°C) insulation system
  • Rugged white powder-coated steel enclosure
  • Medical-grade power cord and output receptacles included
  • Ready-to-use isolation power solution requiring no additional assembly
  • Backed by a 5-year warranty
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Medical Grade Isolation Power Transformers

5.28 Inch (in) Length Medical Grade Isolation Power Transformer
Medical Grade Isolation Power Transformers

5.28 Inch (in) Length Medical Grade Isolation Power Transformer
Medical Grade Isolation Power Transformers

6.38 Inch (in) Length Medical Grade Isolation Power Transformer
Medical Grade Isolation Power Transformers

6.38 Inch (in) Length Medical Grade Isolation Power Transformer
Medical Grade Isolation Power Transformers

7.17 Inch (in) Length Medical Grade Isolation Power Transformer
Description N/A

These medical grade isolation boxes are built using a toroidal transformer construction that inherently helps reduce stray fields, increases efficiency and minimizes size compared to traditional EI transformers. Built with Class F (155º) insulation system. The enclosure is made of steel and powder coated white.
Click here to check stock >> N/A N/A N/A N/A N/A
Maximum Power N/A 250 V·A N/A 250 V·A N/A 500 V·A N/A 500 V·A N/A 1000 V·A
Input Voltage1 N/A 240 V N/A 120 V N/A 240 V N/A 120 V N/A 240 V
Output Voltage2 N/A 120 V
Connection Type N/A Cord, Plug & Socket
Safety N/A Medical
Warranty N/A 5 years
Enclosure Material N/A Steel
Enclosure Finish N/A Powder Coated
Enclosure Color N/A White
Mounting N/A

Rubber Feet for Horizontal Mounting.
Input Voltage Tolerance (Power Cord) N/A ±10 %
Frequency (Power Cord) N/A 50 Hz60 Hz
Note for Output Voltage N/A Alternating Current (AC) Output Voltage (Receptacle) at Maximum 2.08 A. N/A Alternating Current (AC) Output Voltage (Receptacle) at Maximum 2.08 A. N/A Alternating Current (AC) Output Voltage (Receptacle) at Maximum 4.35 A. N/A Alternating Current (AC) Output Voltage (Receptacle) at Maximum 4.35 A. N/A Alternating Current (AC) Output Voltage (Receptacle) at Maximum 8.33 A.
Typical Voltage Regulation from Full Load to No Load N/A 8 % N/A 8 % N/A 5 % N/A 5 % N/A 5 %
Alternating Current (AC) Input to Output Voltage (Hi-Pot) N/A 3000 V
Alternating Current (AC) Input and Output to Enclosure Voltage (Ground) (Hi-Pot) N/A 1500 V
Typical Efficiency at Full Load N/A 92 % N/A 92 % N/A 94 % N/A 94 % N/A 94 %
Operating Ambient Temperature N/A Not to Exceed 60 ºC
Leakage Current N/A Less Than 50 µA
Typical Leakage Current N/A 10 µA
Fusing N/A Replace only with 1.8 A, 250 VAC, Slow Blow, UL Listed Fuses. Recommended Cooper Bussman MDL1-8/10-R. N/A Replace only with 3.0 A, 250 VAC, Slow Blow, UL Listed Fuses. Recommended Littelfuse 0313003. N/A Replace only with 3.0 A, 250 VAC, Slow Blow, UL Listed Fuses. Recommended Littelfuse 0313003. N/A Replace only with 6.0 A, 250 VAC, Slow Blow, UL Listed Fuses. Recommended Cooper Bussman MDL-6-R. N/A Replace only with 6.0 A, 250 VAC, Slow Blow, UL Listed Fuses. Recommended Cooper Bussman MDL-6-R.
Input Connections N/A 11 ft. Medical Grade Power Cord with NEMA 6-15P Plug. N/A 11 ft. Medical Grade Power Cord with NEMA 5-15P Plug. N/A 11 ft. Medical Grade Power Cord with NEMA 6-15P Plug. N/A 11 ft. Medical Grade Power Cord with NEMA 5-15P Plug. N/A 11 ft. Medical Grade Power Cord with NEMA 6-15P Plug.
Output Connections N/A Duplex Receptacle. NEMA 5-15R. N/A Duplex Receptacle. NEMA 5-15R. N/A Duplex Receptacle. NEMA 5-15R. N/A Duplex Receptacle. NEMA 5-15P. N/A Duplex Receptacle. NEMA 5-15R.
Insulation Class N/A Class F (155º)
Industry Standards N/A CSA cULus Listed RoHS 2015/863/EU
Note N/A

Medical isolation transformer box is certified to UL 60601-1, 2nd edition medical standard and CSA-C22.2.No. 601.1M90, 2005
UL: (E352717), UL60601-1, 2nd edition and CAN/CSA-C22.2 No. 601.1M90, 2005

Not for use in life critical application.
  • 1 Alternating Current (AC) Input Volatge (Power Cord)
  • 2 Combined loads connected to receptacle (s) must not exceed maximum current rating.